Threshing-machine.



0 9 1 om 1 mm U A D E T N E T A P R E T S B V L Y S R THRESHING MACHINE.APPLICATION FILED JAN. 26. mos. RENEWEDMAY 2,1907.

.1 I Von/tor 7mm: 5 as.

RICHARD SYLVESTER, OF LINDSAY, ONTARIO, CANADA.

THRE SHING-MACHINE Specification of Letters Patent.

Patented Aug. 13. 1907.

Application filed January 26,1906 Serial No. 298,039. Renewed May 2,1907. Serial No. 371,473.

To all whom it may concern:

in the county of Victoria and Province of Ontario, Canada, have inventedcertain new and useful improvements in Threshirig-Machines; and I herebydeclare that the following is a full, clear, and exact description ofthe same.

In my application for Letters Patent of the United States, Serial Number228,466, which has now matured into Patent 844,627, dated February 19,1907 filed October 14th, 1904, I have shown and described a. motordriven threshing machine in which the motor and radiator are suspendedin front of the blower to heat the air as it enters therein, so that theair current forced by the fan through the separating mechanism will drythe grain as it passes through the separating mechanism. In thisconstruction the heating of the air current is dependent upon theabsorption of the heat units from the motor and radiator by thesurrounding atmosphere, and the full calorific value of the heat unitscannot be utilized as a greater or less percentage of them pass into andare absorbed by the atmosphere beyond the path or course of the aircurrent entering the blower. I have found that by inclosing the blowercasing or part thereof with a water jacket and connecting the waterspace of the water jacket with the water space of the motor bycirculating pipes the full calorific value of the heat units generatedby the motor may be employed to heat the air current within the bloweras the fan revolves; as hereinafter more fully set forth and moreparticularly pointed out in the claims.

For a full understanding of the invention reference is to be had to thefollowing description and to the accompanying drawings in which,

Figure 1 ma side elevation of a portion of the frame of a threshingmachine showing the location of the motor and the water jacketed blower.Fig. 2 is a transverse section of the blower, water jacket and motor.Fig. 2 is a longitudinal section of the parts shown in Fig. 2.

Like letters of reference refer to like parts throughout thespecification and drawings.

As this invention relates to an improvement of the construction shown inthe above patent, only those pal ts of said construction directlyaftcctrd by the present invention will be shown and described.

Revoluble within the blower casing a is the fan a which creates the aircurrent through the usual grain separating mechanism inclosed within theframe a. The lower portion of the blower casing a is inclosed by a motor0 by circulating pipes (I .11 so that the water will flow from the waterspace of the motor to the water jacket of the blower and then return tothe water space of the motor. Formed through the blower casing and waterjacket is an air inlet 1) to which is opposed the motor 0. The waterduring its occupation of the water Space of the motor absorbs the heatunits from the motive agent of the motor and then circulates from thewater space through the pipe (I to the water jacket where the heat unitsof the water are transmitted to and absorbed by the air current createdin the blower by the revolution of the fan. The absorption of the heatunits by the air currents cools the water before it returns to the waterspace of the motor, and the heating of the air straw and its passagefrom the separating mechanism.

Having thus fully described my invention hat I current drys the grainduring its separation from the water jacket b connected with the waterspace of the

